The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Anas Chalermsilp
Department of Tool and Material Engineer, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok,
Thailand

Surasak Suranuntchai
Department of Tool and Material Engineer, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok,
Thailand